Final answer:
The probability that all of the electric acts get to play in the show is approximately 0.0000203. Hence, option a) is correct.
Step-by-step explanation:
In this question, we are selecting 10 musical acts randomly and we want to find the probability that all of the electric acts get to play in the show. Let's assume there are a total of 50 musical acts, out of which 15 are electric acts. The probability of selecting an electric act is 15/50. Since we want to select all electric acts, we need to multiply this probability by itself 10 times (since we are selecting 10 acts).
Therefore, the probability that all of the electric acts get to play in the show is (15/50)^10 which is approximately 0.0000203. So the correct answer would be option a) 0.0000203.